Improvement in reservoir cooking-stoves



w. H. JOHNSON. Reservoir Cooking Stove.

2 Sheets-Sheet '1.

Patented June 29, 1869.

2 Sheet s-sheet 2.

'W. H. JOHNSON.

Reservoir Cooking Stove. 4 o. 91,851. Patnted June 29, 1869.

WILLIAM H. JoHNsoN, OF TROY, NEW YORK.-

Letters Patent No. 91,851, dated June 29, 1869.

IMPROVEMENT IN RESERVOIR COOKING-STOVES.

The Schedule referred to in these Letters Patent and making part of thesame.

To-all whom it may concern:

Be it known that I, WILLIAM H. J orrsson. of the city of Troy, in thecounty of Rensselaer, and State of New York, have invented certain newand useful Improvements in (looking-Stoves having Water- HeatingReservoirs, of which the following is a full and exact description,reference being bad to the accompanying drawings, in which, on sheet AFigure 1 is a perspective view;

Figure 2, a horizontal section at the line 2 z, in figs. 3, 4, and 5;

Figure 3, a vertical section at the line y y, 2, 4, and 5 Figure. 4, afront elevation of a section at the line a: x, in figs. 2 and 3; and

Figure 5, a vertical section at, and elevation of some parts'in frontof, the line w w, in figs. 2 and 3; all of a cooking-stove in which thedistinguishing features of my invention are embodied.

011 sheet 13-- Eigure 6 is a perspective view, and

Figure 7, a plan and partial horizontal section justunder the top-plate,of another cooking-stove which embodies the distinguishing features ofmy invention; and r I Figure 8 is a plan and partial horizontal sectionjust below thctop-plate, of another reservoir cooking-stove,

in which a portion of my invention is embodied.

Like parts are marked by the same letters in the different figures; andthearrows therein indicate the course of the hot gases of combustionthrough the stove.

Cooking-stoves have been commonly made with a fire-box, A, (see theaforesaid drawings,) at one end; an oven, B, in rear of the tire-box; afire-flue, 0, leading from the fire-box along the top of the oven; anddescending and ascending tines D E, along the upright rear side J, ofthe oven, and in communication with the top-flue O, and forward andreturn-fluesnuder the oven, essentially as shown in the drawings.

In some such cooking-stoves, a water-reservoir, G, has been arrangedwith its front side 71 directly against a rear upright-plate, t,fin-ming the rear casing of the descending and ascending fire-fines inrear of the oven, while the ends j j, and back sidek, of the reservoirwere naked; so that the reservoir was heated merely by the front sidc'ofthe reservoir being against the back-plate of the stove; andconsequently the water in the reservoir was not heated as quick, nor ashot, as is generally required. Cooking-stoves having the above-describedarrangement of tire-box, oven, and fire-fines, have also been made witha watel reservoir, G, arranged so that the front side 71, of thereservoir itself formed a large portion of the rear side of thedescending and ascending fire-fines inrear of the oven; so that all thehot gases a stove, the hot gases lost heat so rapidly,

of combustion had to pass down directly along or in contact with thefront side of the water-reservoir, before passing under the oven.Consequently, in such by giving it out directly to the reservoir beforepassing under the oven,.that-it was impossible or very difficult to,

heat the'oven, sovas to bake good, when the reservoir was filled withcold or moderately warm water.

Cooking-stoves having the oven, fire-box, and fireflnes, arrangedsubstantially as above described; have also been made with awater-reservoir arranged in rear of the fire-flues, back of the oven,and a flue-space or heating-chambers extended along the front side h,ends jj, and rear side k, of the reservoir all at once, and incommunication with the rear fire-fines 'of the stove. But aheating-chamber along the rear side, or the front side of the reservoir,in addition to heating-chambers along the ends thereof, and thedescending and ascending tire-fines in front, is unnecessary to properlyheat the water in the reservoir, and renders the stove more expensive,and makes it necessary either to have the reservoir much narrower in therearward direction, and, consequently, smaller than is generallydemanded, or to have the upper portion of the stove extended too farrearward. 1

The principal object of my invention is to avoid the aforesaid defectsin water-reservoir cooking-stoves, having descending and ascendingfire-fines between the oven and the water-reservoir, in rear of theoven; and the distinguishing feature of one part of my 'invention insuch cooking-stoves is, the arrangement of heating pockets, or chambersL L, along the two upright ends j j of the reservoir, with apertures, orwas sages m on, leading directly into the rear or top tireflue, orfire-fines of the sto've, when the rear upright side It of the reservoiris naked so that, while the reservoir shall'be heated sufficiently bythe hot gases of combustion in the descending and ascending flues 1) Eand chambers, or pockets L L, I obviate all necessity for reducingt-he'size and width of the reservoir in a rearward direction, and avoidthe expense of having a heating-flue, or chamber along the rear side ofthe reservoir. 4 v

As regards'this part of my invention, itis not necessary that the frontside of the reservoir should be close against a vertical plate, orcasing, in rear of the tiretlues, in front of the reservoir; nor thatthere should be any plate between the front side of the reservoir andthe descending and ascending flues, in rear of the oven.

The distinguishing feature of another part of my invention incooking-stoves having descendingand ascending fire-fines D E, along therear side of the oven, and. in communication with a fire-flue, orfire-tines, over and under the oven 15, substantially as shown by thedrawings, is, a water-reservoir, G, having its front side It arrangeddirectly against a plate, or casing, "i, which forms the rear side ofthe descending and ascending fire-fines, in rear of the oven, incombination or connection with pockets, or chambers L L, extended alongthe ends j j of the water-reservoir, and having communication with thefire-fines of the stovebypassages m m, so that"while the front side oftheh'eservvoir shall be moderately heated by'beingagainst the thereservoir will not abstract heat so rapidly from the hot gases ofcombustion, as the latter descend in the fine, or fines D or D D,.topassunder the oven, and therefore, will not lessen'the baking capabilityofthe oven as much when the reservoir is full of cold or mod-.erately-warm water, as would be the case if the trout side h of thereservoir itself served'as'a portion of the rearv casing of thedescending fire-flue, or fire-fines.

Asregards the last-aforesaid part of my invention, the rear side of thereservoir need not be naked.

The distinguishing feature of another part of my invention incooking-stoves is, a water-reservoir, G, having one upright side, It,arranged directly against a plate, or casing, t, forming the back sidevof descending and ascending fire-fines D E, in rear of the oven, withpockets, or chambers LL, extended alorg the upright ends j j of thereservoir, and in communication, by

apertures, or passages m m, with the fire-flue, or firefiues in front ofthe reservoir, when the rear side It of the reservoir is naked; so thatwhile the fi'ont side and ends of the reservoir are moderately,- butsufliciently heated without materially lessening the baking capabilityof the oven, all necessity and expense of having a heating-chamber, orfire-flue extended along the rear side of the reservoir, or between thefront side of the reservoir and the casing i of "the fire-fines, isavoided, and the reservoir can be of the greatest practicable width andcapacity in the rearward direction, with the least rearward extension ofthe upper part of the stove.

The distinguishing feature of another part of my invention in acooking-stove having a water-reservoir, G, arranged in rear ofdescending and ascending fireflues-D E, back of the oven Bof the stoveis, heatingpockets, or chambersL L, arranged along the upright ends j jof the reservoir, when such pockets, or chambers bag out or projectlaterally beyond the sides of the oven, and have communication with thefire-fines of the stove by passages m m, formed through or inlaterally-projecting parts a n of the side-plates 0 0 of the stove,essentially as shown by figs. 1, 2, 4, 5, 6, and 7, and not throughapertures in any back-plate i, of the stove, as shown in fig. 8.

By this improvement, the reservoir G can be extended entirelyacross andheated directly by the whole rear side ofv the descending and ascendingfire-fines, in rear of the oven, as shown in figs. 2 and 7, andthereservoir can, therefore, be considerably longer in a lateral direction,and, consequently, of greater capacity for holding and heating water,without being any deeper, nor any wider, in the rearward direction, thanwhen the pockets, or chambers L L, do not project, or bag out laterailybeyond the sides of the oven, and have communication withthe fire-finesof the stove, by apertures in the back casing 45, as shown in fig. 8.

In carrying out my invention, I make the stove either with onedescending flue, D, and one ascending fine, E, in rear of the oven, asshown in fig. 7 or with two descending flues, D, and one ascending one,E, as in figs. 2, 4, and ,8; and I have the reservoir either whollybelow -the top plate 12 of the stove, as in fig. 6, or mainly below andpartly above the top plate, as in figs. 1, 3, and 4.

In casea part of the reservoir shall be above the top plate, I sometimeshave a part of the upper portion of the reservoir extend over and formthe tops of the chambers L L, as indicated by red lines, at q q, in fi5.

1 make the water-reservoir of any suitable known materials,-butgenerally prefer to have the reservoir and the plates of the stove allof cast-iron, and fastened together by lugs, flanges, and stove-bolts,in the usual manner, the reservoir being enamelled on its inner surface,or galvanized, or coated with zinc, or

an alloy of tin and zinc, or other suitable known covering, to keep theinner surface of the. reservoir from rusting.

R is the common damper.

Having thus fully described my invention, I would state that I do notclaim a reservoir having a single plate at the-rear of the boiler, withpockets, or chambers at the ends, which, by'suitable contrivances, makea continuation of the usual circulation of three-fine cooking-stoves,but without first passing under the oven; but 1 What I do claim as myinvention, and desire to secure by Letters Patent, isa A cooking-stove,having a water-reservoir, G, in rear of descending and ascendingfire-fines D E, back of the oven, when the rear side It of the reservoiris naked,

and heating-chambers L L extend along the ends j j of the reservoir, andhave communication with the fireflues of the stove by apertures m in,substantially as shown and described.

Also, in a cooking-stove, a water-reservoir, arranged with its frontside It directly against the rear casing i, of descending and ascendingfire-fines, along the upright rear side f of the oven, whenheating-pockets, or chambers L L, having communication, by passages man, with the fire-fines of the stove, extend along the ends of thereservoir, as lierein shown and described.

Also, in a cooking-stove, a water-reservoir, arranged with its frontside against the rear casing t ofdescending and ascending fire-fines,along the rear side of the oven, when the back side k of the reservoiris naked,

and heatingpockets, or chambers L L, having communication with thefire-flue, or fire-fines of the stove, extend along the ends jj of' thereservoir, as herein set forth.

Also, in a cooking-stove, having a water-reservoir arranged back ofdescending and ascending fire-flues, along the rear side of the oven,the heating-pockets, or chambers L L, extending along the ends of thereservoir, and bagging'out or projecting laterally beyond the sides ofthe oven, and having communication with the fire-flues' of the stove, bypassages through or in laterally-projecting parts a n of the side-plates0 o of the'stove, substantially as hereindescribed and shown by figs. 1,2, 4,6, and 7. 1

In testimony whereof, I hereunto subscribe my name, this 16th day ofMarch, 1869.

Witnesses: WILLIAM H. JOHNSON.

HARRISON Mumnnr, JOEL B. HAYDX.

